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llvm-project/llvm/test/Transforms/DeadStoreElimination
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Florian Hahn 274a9b0f0b
[DSE] Support redundant stores eliminated by memset. 
This patch adds support to remove stores that write the same value
as earlier memesets.

It uses isOverwrite to check that a memset completely overwrites a later
store. The candidate store must store the same bytewise value as the
byte stored by the memset.

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D112321
2021-10-29 22:19:53 +01:00
..
X86
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
2011-03-25-DSEMiscompile.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
2011-09-06-EndOfFunction.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
2011-09-06-MemCpy.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
2016-07-17-UseAfterFree.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
atomic-overlapping.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
atomic-todo.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
atomic.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
calloc-store.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
captures-before-call.ll
[AA] Move earliest escape tracking from DSE to AA
2021-09-25 22:40:41 +02:00
captures-before-load.ll
[AA] Move earliest escape tracking from DSE to AA
2021-09-25 22:40:41 +02:00
combined-partial-overwrites.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
const-pointers.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
crash.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
cs-cs-aliasing.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
debug-counter.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
debuginfo.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
dominate.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
fence-todo.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
fence.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
free.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
inst-limits.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
int_sideeffect.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
invariant.start.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
launder.invariant.group.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
libcalls.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
lifetime.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
loop-invariant-entry-block.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
masked-dead-store-inseltpoison.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
masked-dead-store.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
mda-with-dbg-values.ll
Revert "[NFC] remove explicit default value for strboolattr attribute in tests"
2021-05-24 19:43:40 +02:00
memcpy-complete-overwrite.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
memcpy-lifetimes.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
memintrinsics.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
memory-intrinsics-sizes.ll
[DSE] Handle memmove with equal non-const sizes
2021-03-10 17:52:00 +01:00
memoryssa-scan-limit.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
memset-and-memcpy.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
memset-missing-debugloc.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
memset-unknown-sizes.ll
[DSE] Add test cases with more complex redundant stores.
2021-10-22 13:50:32 +01:00
merge-stores-big-endian.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
merge-stores.ll
[Tests] Fix incorrect noalias metadata
2021-09-18 20:51:00 +02:00
multiblock-captures.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
multiblock-exceptions.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
multiblock-loop-carried-dependence.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
multiblock-loops.ll
[DSE] Remove stores in the same loop iteration
2021-06-20 17:03:30 +01:00
multiblock-malloc-free.ll
[IR] Memory intrinsics are not unconditionally nosync
2021-05-21 03:40:59 +02:00
multiblock-memintrinsics.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
multiblock-memoryphis.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
multiblock-multipath-throwing.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
multiblock-multipath.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
multiblock-overlap.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
multiblock-partial.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
multiblock-simple.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
multiblock-throwing.ll
[DSE] Add test cases with more complex redundant stores.
2021-10-22 13:50:32 +01:00
multiblock-unreachable.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
no-targetdata.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
noop-stores.ll
[DSE] Re-enable calloc transformation with extra care (PR25892)
2021-10-10 21:47:14 +02:00
offsetted-overlapping-stores.ll
[DSE] Extending isOverwrite to support offsetted fully overlapping stores
2021-03-10 21:09:33 +01:00
opaque-ptr.ll
[OpaquePtr] Forbid mixing typed and opaque pointers
2021-09-10 15:18:23 +02:00
operand-bundles.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
out-of-bounds-stores.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
overlap.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
OverwriteStoreBegin.ll
[OpaquePtr] Forbid mixing typed and opaque pointers
2021-09-10 15:18:23 +02:00
OverwriteStoreEnd.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
PartialStore2.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
PartialStore.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
phi-translation.ll
[DSE] Add tests that require phi translation to be removed.
2021-03-10 16:32:55 +00:00
pr11390.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
pr47285-not-overwritten-on-all-exit-paths.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
read-clobber-after-overwrite.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
scoped-noalias.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
simple-preservation.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
simple.ll
Reapply "OpaquePtr: Turn inalloca into a type attribute"
2021-03-29 08:55:30 -04:00
stats.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00
stores-of-existing-values.ll
[DSE] Support redundant stores eliminated by memset.
2021-10-29 22:19:53 +01:00
tail-byval.ll
[DSE] Remove MemDep-based implementation
2021-03-07 18:17:31 +01:00